Wang Junfeng, Zhu Xiushan, Norwood Robert A, Peyghambarian Nasser
Opt Express. 2021 Nov 8;29(23):38646-38653. doi: 10.1364/OE.443808.
Wavelength tunable dysprosium-erbium (Dy/Er) co-doped ZBLAN (ZrF-BaF-LaF-AlF-NaF) fiber lasers pumped at 980 nm were developed with a bulk grating blazed at 3.1 µm in the Littrow configuration and their performances were investigated. A wavelength tunable range of 674.4 nm (2709.2 nm -3373.6 nm) was achieved with a 4.5-m 0.25 mol.% Dy/ 4 mol.% Er co-doped ZBLAN fiber. Our experiments demonstrated that either Er or Dy can be lasing individually in a Dy/Er co-doped ZBLAN fiber and a fiber laser with wavelength tunable range from 2.7 µm to 3.4 µm or longer wavelengths can be achieved with proper fiber and cavity design.
开发了在980 nm泵浦的波长可调谐镝 - 铒（Dy/Er）共掺杂ZBLAN（ZrF - BaF - LaF - AlF - NaF）光纤激光器，该激光器采用在 Littrow 配置下闪耀波长为3.1 µm的体光栅，并对其性能进行了研究。使用4.5米长、0.25摩尔％ Dy / 4摩尔％ Er共掺杂的ZBLAN光纤实现了674.4 nm（2709.2 nm - 3373.6 nm）的波长可调谐范围。我们的实验表明，在Dy/Er共掺杂的ZBLAN光纤中，Er或Dy都可以单独产生激光，并且通过适当的光纤和腔设计，可以实现波长可调谐范围从2.7 µm到3.4 µm或更长波长的光纤激光器。
